Sidney b



(No Model.)

S. E. BRETHERTON & W. OOLBURN.

SLAG, DUMP. No. 339,737. Patented Apr. 13-, 1886.

N. PETERS. PhMu-Lhhographar Washinglom n. c.

UNITED STATES PATENT OFFICE.

SIDNEY E. BRETHERTON AND \VILLIAM GOLBURN, OF LEADVILLE, COLO.

SLAG-DUMP.

SPECIFICATION forming part of Letters Patent No.339,737, dated April 13, 1886.

Application filed h ovember 5, 1885. Serial No. 181,940. (No model.)

To aZZ whom it may concern.-

] balanced by the other car with its slag-pots,

Be it known that we, SIDNEY E. BRETHER- and the power necessary to operate the system TON and WILLIAM CoLBURN, both citizens of the United States, residing at Leadville, in the county of Lake and State of Colorado, have jointly invented a new and useful System for Raising XVaste-Dumps Formed by the \Vaste- Slag from Blast-Furnaces, of which the followiug is a specification.

Our invention relates to the utilization of the superficial area already occupied by a slagdump, by filling in on top thereof successive layers or thicknesses of slag, and thus by increasing the depth or thickness of the dump at any smelting-works save largely in the surface-area required for the dump. By thus reducing the surface-area to a minimum we also reduce greatl ythe wear and tear of slag-pots, the number of outside helpers required, distances to be traveled in wheeling the slag-pots over the dump, length of tracks to be kept clear of snow, the expensein the original cost of ground purchased for the works, and by dumping close or near to the furnaces we facilitate the detection of scrap-lead, matte, speiss, or other valuable furnace products in the dump, and the consequent saving of the same. By the use of our invention, also, slag can be dumped into railroad cars or tracks elevated above the groundsurface, so as not to interfere with operations on said surface, and furnaces can be built at any level relative to the dump-ground, according to the topography of the location.

In the drawings our system is shown applied to the purpose of dumping slag from a blast-furnace at a higher level than that of the furnace-hearths, and the same letters refer to the same parts in each View. This arrange ment consists in an inclined railway built on trestle-worlr with double track of ordinary railroad-iron, the upper end being of an elevation equal to the height to which the new dump is to be built up. On each railroadtrack is a car, built either of iron or wood, but preferably of the former material, and of such a size as to accommodate with ease six or more slag pots of the ordinary construction. These two cars are connected together with an iron or steel wire cable, running over two sheaves at the upper end of the incline, and thus the weight of each car With its load of slag-pots is exactly counterhas to overcome only the actual weight of the slag raised on a car plus the friction on the two sheaves aforesaid. The lower end of the inclined plane reaches below the level of the old dump sufliciently to allow the top of the slag-car, when at the said lower end, to be on an exact level with the surface of said old dump and with the roadway leading from the furnaces. The cars are so arranged that while one is being loaded at the foot of the incline the other is being unloaded at the top. The slag-pots are of the ordinary construction, and run onto the lower car by hand, and also unloaded aud dumped by hand, in the ordinary way, at the top of the incline.

Figure 1 is a general elevation or side view of our system, showing the lower-car being loaded with slag-pots and the upper one being unloaded at the same time. Fig. 2 is a general plan with a portion of the upper car and of the top platform removed, in order to show more clearly the hoisting arrangement beneath. For the same purpose, also, most of the framing of the trestle-work is removed, also the ties under the railroad-tracks. Fig. 3 is a side view, on an enlarged scale, of the iron and paper friction-pulleys and wooden brake-block. Fig. 4 is a side view, and Fig. 5 a plan, of the automatic loop-clutch arrangement for holding the upper car in position while being unloaded, and the foot lever for loosening when the car is ready to be lowered down to the foot of the incline. Fig. 6 is a View, showing on an enlarged scale, the construction of the paper friction-pulleys.

In the drawings, a a represent the level of the original ground-surface, or the old dump,

clined top, is then erected with its lower end in this said hole and upper end at an elevation above the old dump or grouml-surface equal to the depth or thickness of the proposed new dump, so that the top of the trestle- IOO work is on a level with the proposed new dump-surface. This trestle-work may be constructed of wood, iron, brick, stone, or old slag-whatever materials maybe most econonrical at the place of construction. In the drawings it is shown of wooden construction, and may be made of any rate of inclinationdesired. Upon this trestle work or incli'ned plane are then built two railroad-tracks, c c, constructed of cross-ties or stringers and on dinary railroad-iron in the usual manner, and of such a gage as toreceive two slag-cars, (Z and e, the cars being of such a size as to'receive each any convenient number-ms six or more-slag-pots f f of the ordinary construction. At the topof the inclined plane a platform, 9 g, is built out a short distance, to allow of dumping the slag clear of the trestle-work,

the nearest posts and frame-work of which are also protected by a pile of cold slag or iron plates from the heat of the fresh slag being dumped. The two slag-cars (Z- and e are connected together by a wire cable, 7:, running over two sheave-pulleys or "idlers, 5 i, fixed near the top of the incline. The ends of this cable are fastened by hooks to .the rear or lower axles of the cars (I and e, and thus each ar with its load of slag-pots is counterbal anced by the other car similarly loaded.

The cars d and 0 can be made of either wood or iron, but preferably of the latter material, and are thus shown in the drawings constructed of angle-iron and iron plates braced and supported through two axles on four wheels of the ordinary single-flanged construction. 'At the outer corner of each car nearest the upper end of the inclined plane is fitted a looped clutch, j, which is movable about its pivot or axis K, and in its ordinary position projects beyond the car a few inches. As one of the 'cars going upward -approaches the top of the inclined plane the outer end of the clutch j strikes the curved face of a lug or stud, Z, firmly fixed at the edge of the platform 1 on the top of the incline, slides up the said curved face, and drops over the top of said stud simultaneously with the car reaching the top, and thus holds the car vin place with its surface on a level with the plat-form g 9, so that the slag-pots can be run on said platform and dumped with ease.

.The back of the stud Z is vertical, and against it rests loosely one end of a double foot-lever, m, and when it is desired to loosen the car the pressure of a foot on the opposite end of the lever m releases the clutch j, and the car is then only held by the cable 71, attached to the other-car, or by a second cable, now to be described.

To the front or upper axle of each car is attached by a hook a second wire cable, n, passing over a sheave, 0, at the top of the inclined plane, through a hole in the platform 9, and attached at its other end to the drum 1). The drunrshaft is short, and there is keyed onto it, alongside the drum 1), a large-sized iron friction-pulley, g, which may be brought against a friction-pulleyfl, on a driving-shaft, y. The inner end, r, of this shaft fitssomewhatloosely' in a plumber-block or bearing of ordinary description. The outer part, 8, is turned of an oval form, thus becoming an eccentric, as

shown clearly in Fig. 3, in its bearing, and

the eccentric onthe outer end of this shaft is received by a recess in alever, t, turning in a bearing on the frame and attached by a link, u, to the hand lever v, operated from the platform 9.

Against one of the outerposts of the trestle- I work is attached the brakeblock w, and when the hand-lever o isthrown over in one direction the frictionpulley q is brought firmly against this brake-block,and through the drum p, sheave 0. and cable it holds the attached car in any position on its track. When thehan'dlever 12 is thrown in the reverse position, the pulley q is then thrown against or in gear with the paper friction pulley w onthe drivingshaft '1, and thus receives motion, winding up the cable on the drum qand raising the attached car to the top of the inclined plane.-

It must be clearly. understood that there is one complete set of cable a, sheave 0, drum 1;,

pulley q, and pulley a: for each car; butin the plan, Fig. 2, the cable a belonging to car e is shown coiled round the drum 1;, the platform 1 and part of the car 6 being removed for the purposeof showing more clearly the gearingand driving arrangements, as hereinbefore mentioned. V

The driving shaft g/extends throughout the whole breadth of the trestle-work or inclined plane, carrying,besides the two paper frictionpulleys m 00, the large driving-pulley z, keyed on the center.

In caseone set of friction-gearing-drum and cable n-should be disabled from any cause the system can still be operated through the other set, the cars being connected together safely'through the cable h.-

The driving-shaft y can receive its motion through any convenient means, either by belt,

spur, or friction gearing. In the drawings the power is shown applied through a countershaft, A, having keyed on at one end the sheave-pulley B and at the other the pulley O,

connected by the belt or band D with the pulley 2. wire cable E, passing over the sheave B and over another sheave on the main-line shaft driving the blowers to the furnaces, &o., but

not shown in the drawings.

To operate our system we proceed as follows: Suppose the car d to be loaded with slagpots newly filled from the furnaces and ready to be dumped, and the car 0 to be loaded with empty slag-pots already dumped and ready to be returned to the furnaces, d being at the bottom of the incline and e at. the top, as shown in Figs. 1 and 2. The dumper,standing atthe end of the platform opposite e,brings the handlever 12 to the center of its throw, thereby freeing the pulley (1 both from brake-block w and This counter shaft is driven by the the paper friction-pulley w, and at the same moi ment presses the lever m with his foot, thereby releasing the clutch j and leaving the car e free and kept from descending the incline by the cable It alone, attached to car (1. He then goes to the opposite end of the piatform,and, by the levers o, u, and t, throws the pulley q into gear with pulley x, and thus hoists the car d,which,when arriving at the platform y, fastens itself automatically by means of the clutch j and stud Z at the same moment that the car 0 reaches the foot of the incline.

The paper friction-pulleys x as are constructed as follows: Coarse brown paper or backboard, prefcrably,is cut into circles of diameter equal to that of the intended pulley, and holes punched out in the center for the shaft, and in other places concentric with the shaft,to admit the binding-bolts. A sufficient number of these sheets of backboard are then placed one over the other until a thickness equal to the length of the proposed pulley is attained. Two iron plates with shaft-holes, bosses, and holes for the binding-bolts corresponding to the holes in the backboard, are then placed at each side of the paper mass and the whole firmly bound together by bolts, as shown in Figs. 3 and 6, the latter of which shows the construction very plainly.

\Ve claim 1. The combination, with the dumpingground and with a roadway leading to furnaces, of an inclined elevated railway extending above and over the dumping-ground, substantially as hereinbefore described.

2. The combination, with the roadway leadto the furnaces and with the dumping-ground having a recess, :r, of an inclined railway extending from said recess to an elevated position, substantially as described.

3. The combination of the dumping-ground, recess x, inclined railway, cars adapted to said railway, and platform arranged to be level with the roadway leading to the furnaces when the cars are at the lowest position, substantially as described.

4. The combination of the dumping-ground having a recess, 00, an inclined way extending at one end into the recess and below the surface of said dumping-ground and at the opposite end up and over the said surface, and cars traveling on the way and adapted to receive the slag-trucks from the roadway leading to the furnaces, substantially as described.

5. The combination, with an inclined railway, of two cars or trucks having horizontal platforms, a cable connecting the cars at their rear ends and passing over sheaves on the railway, a cable connected to the forward part of a car and connected to a power-driven drum, substantially as described.

6. In combination with an inclined railway, a car having a horizontal platform, a clutch connected to the car, a connection on the platform for the clutch, and a foot-lever for loosening the clutch, substantially as described.

7. The combination, with an inclined. railway, of a power-driven shaft carrying a friction-pulley, a drum-shaft carrying a friction pulley, a brake-shoe, and adjusting devices for carrying the shaft-pulley to and from the brake-shoe and power-pulley, substantially as described.

8. The combination of the car and platform and automatic coupling, substantially as described.

9. The shaft formed eccentrically at one end, thereby permitting pulleys or wheels fastened thereon to be thrown in or out of gear with adjacent wheels or pulleys, substantially as described.

In testimony whereof we have signed our names in the presence of two subscribing witnesses.

SIDNEY E. BRETHERTON. VILLIAM GOLBURN.

Vitnesses:

CHAS. J. MOORE, H. R. PENDERY. 

